No Rodney King race riots going on in L.A. county, gentrification projects in L.A. and L.B. perhaps? new building projects being developed making neighborhoods more expensive to live in, think Staples Center, Crystal Cathedral, Walt Disney Concert Hall, The Pike and Aquarium in Long Beach.

I seriously doubt nobody was murdered south of the 405 last year in Long Beach. Compton has turned into a Mexican city, it is no longer a black city. Asians have traditionaly dominated certain areas in Orange County, I can only assume they are making their way deeper into L.A...I dont know.

It would be interesting to see if the black population has diminished in 20 years.